Cal. Bus. & Prof. Code § 7672.5

Each cremated remains disposer shall provide the person with the right to control the disposition of the remains under Section 7100 of the Health and Safety Code with a copy of the completed permit for disposition of human remains pursuant to Chapter 8 (commencing with Section 103050) of Part 1 of Division 102 of the Health and Safety Code within 30 days of the date of the scattering.